#include Problem $2.$ Calculating Area, Circumference of

Circle

Expand the program you wrote for Problem $1$ to include circle circumference

calculation. The user of your program first enters a radius as before, but your

program then should prompt the user to pick either an area calculation or

circumference. If the user enters a $\text{'}1\text{'}$ then calculate area, if the user enters a $\text{'}2\text{'}$

then calculate circumference. If the user enters any other number, then print an

invalid user input message with the input number.

Input:

The program will ask the user to enter

The radius of circle $($float variables identified as radius$).$

Then ask user to enter either $1.$ to calculate Area or $2.$ to calculate

circumference.

If the user enters any other value an error messages "Invalid user input

message with the input number." must be displayed, and the program ends.

Output:

The output must be formatted as below:

Enter the radius of the circle: $12\mathrm{.}5$

$-$Radius entered is: $12\mathrm{.}5\%$

Enter $\text{'}1\text{'}$ for area or $\text{'}2\text{'}$ for circunference: $\}$

The area of the circle $1$s: $490\mathrm{.}05$

Enter the radius of the circle: $27$

$-$Radius entered is: $27.$e@

Enter $\text{'}1\text{'}$ for area or $\text{'}2\text{'}$ for circunference: $2$

The circunference of the circle is: $169\mathrm{.}64$

Enter the radius of the circle: $5\mathrm{.}37$

$-$Radius entered is: $5\mathrm{.}37$

Enter $\text{'}1\text{'}$ for area or $\text{'}2\text{'}$ for circunference:,$5$

Irvalid user input: $5$

Topics covered: Basic C$,$ printf$/$scanf$,$ Expression evaluation $($Chapter $1-2).$

Test your code before submitting

Remember to compile your code and fix any errors.

Then test it$,$ if it passes all tests, then you can submit by selecting the option "mark

as complete".

Test $1$

Test User Choice $1.$ calculate area

#include